www .htaccess rewrite and Drupal multisite

keywords:
forward all to one url

RewriteCond %{HTTP_HOST} ^www\.tom\.com$ [NC]
RewriteRule ^(.*)$ http://tom.com/$1 [L,R=301]

RewriteCond %{HTTP_HOST} ^www\.jerry\.com$ [NC]
RewriteRule ^(.*)$ http://jerry.com/$1 [L,R=301]

from http://exodusdev.com/multi-site-compatible-apache-rewrite-rules

Question: can the above be automated or universalized?

Something like RewriteCond %{HTTP_HOST} ^www$ [NC] ?

Another question: what about https?

All the single-site methods:

If you want to remove the "www." add this to your .htaccess file (this works for Apache). If you don't have a .htaccess file create one with this in it.
| RewriteEngine On
RewriteCond %{HTTP_HOST} ^www.example.com$ [NC]
RewriteRule ^(.*)$ http://example.com/$1 [R=301,L]|

WWW or No WWW, that is the SEO Question
<http://www.mattfarina.com/2007/07/24/www-or-no-www-seo-question>


RewriteCond %{HTTP_HOST} ^www.OpenSourceCommunity.org$ [NC]
RewriteRule ^(.*)$ http://OpenSourceCommunity.org/$1 [R=301,L]

RewriteEngine On
RewriteCond %{HTTP_HOST} ^www.domain.com$ [NC]
RewriteRule ^(.*)$ http://domain.com/$1 [R=301,L]